Measurement of branching fractions of charmless four-body Λb0 and Ξb0 decays

The LHCb Collaboration

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A search for charmless four-body decays of Λb 0 and Ξb 0 baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb−1. Six decay modes are observed, among which Λb 0 → pK−π+π−,Λb 0 → pK−K+K−,Ξb 0 → pK−π+π− and Ξb 0 → pK−π+K− are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξb 0 baryon) are determined relative to the Λb 0 → Λc +π− decay.
Original languageEnglish
Article number98
Number of pages25
JournalJournal of High Energy Physics
Issue number2
Publication statusPublished - 2018
Externally publishedYes


  • B physics
  • Branching fraction
  • Hadron-Hadron scattering (experiments)

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